| 电磁学中的某些进展与电磁法的有关问题 |
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| 引用本文： | 徐义贤.电磁学中的某些进展与电磁法的有关问题[J].地球物理学进展,1996,11(1):88-96. |
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| 作者姓名： | 徐义贤 |
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| 作者单位： | 中国地质大学 |
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| 摘 要： | 本文介绍了电磁学研究热点中与电磁脉冲有关的瞬变电磁场（ＴＥＭＦ）、Ｍａｘｗｅｌｌ方程组的瞬态解等方面的最新进展，对各界瞩目的电磁导弹（ＥＭＭ）问题做了较详细评述，对ＴＥＭＦ的求解方法做了简要总结，并着重介绍了一种适于任意媒质，高维情况下的广义时域有限差分算法（ＧＦＤＴＤ）；通过引入手征媒质中电磁场的本构方程，证明了电磁波在地中传播时，源电极化和源磁极化之间存在耦合关系，这种耦合作用的结果总是程度不
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| 关 键 词： | 电磁脉冲 瞬变电磁场 电磁法 电磁法勘探 电磁学 |
VIEWS ON SOME ADVANCES IN ELECTROMAGNETICS AND EM METHODS RELATED |
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| Xu Yixian.VIEWS ON SOME ADVANCES IN ELECTROMAGNETICS AND EM METHODS RELATED[J].Progress in Geophysics,1996,11(1):88-96. |
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| Authors: | Xu Yixian |
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| Abstract: | Some advances in electromagnetics have been reviewed, especially, electromagnetic missile(EMM) has been discussed in detail in this paper. The author concludes two manners of the solution of TEM field briefly, and introduces a generalized finite-difference time-domain (GFDTD) algorithm. The interaction proved between electric polarization and magnetic polarization of sources can strengthen electric field intensity when EM waves propagate in earth with chiral media. |
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| Keywords: | electromagnetic pluse (EMP) TEM field EMM chiral media EM method |
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